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Publications

Publications by Bruno Giesteira

2021

How Do I Feel When… A Card-Based Communication Game to Stimulate Empathy Among Family Members with Anorexia Nervosa

Authors
Peçaibes, V; Cardoso, P; Castro, L; Giesteira, B; Lopes, L; Junqueira, C;

Publication
Springer Series in Design and Innovation

Abstract
Today, games play active roles in diverse stages of the treatment of various mental illnesses. Despite this favourable context, their use as tools in the treatment of anorexia nervosa is still quite unexplored. We are developing playful and gamified tools that can be used as instruments in the prevention, treatment and monitoring of this complex disease. The objective of this paper is to present the initial process of design and development of a card-based game called How do I feel when… Its purpose consists of stimulating empathy among family members of patients with anorexia nervosa. Play sessions are to be mediated by health professionals and are supposed to occur in the context of support and therapeutic groups for family members of people suffering from eating disorders or in clinical consultations. Preliminary tests and expert reviews showed that the game is effective in establishing free association of subjects in players’ reasonings, and in inciting the externalisation and sharing of players’ feelings. It also demonstrated that, because players usually read the cards in accordance to their life experience, the game is able to circumscribe and personalise the subjects to be discussed. © 2021, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG.

2022

Designing User Interaction with Linked Data in Historical Archives

Authors
Guedes, C; Giesteira, B; Nunes, S;

Publication
ACM JOURNAL ON COMPUTING AND CULTURAL HERITAGE

Abstract
In this article, we present solutions to visualize and interact with linked data in historical archives considering three different scenarios: search, individual record view, and creation of relationships. The created solutions were designed using nonfunctional mockups and were based on the CIDOC-CRM model, a model created and applied in the museums community liable to be extended to other cultural heritage institutions, being our solutions an application of this model to archives. A sample of 20 archival professionals was selected to evaluate the elements included in the proposed solutions. The evaluation sessions consisted in structured interviews supported by an introductory video and a survey. The think-aloud protocol was applied during the sessions. We conducted both a quantitative and qualitative analysis to the collected answers. From this analysis, we conclude that the majority of the participants showed great receptivity to the solutions presented and recognized many benefits in the application of linked data. Our contributions also include an exploratory study of some existing linked data systems, giving particular attention to their visualization and interaction modes.

2010

Gestalt and Computational Perceptual Approach Brain responses tendencies given by visual and auditory basic stimuli

Authors
Giesteira, B; Travassos, J; Freitas, D; Tavares, D;

Publication
COGNITIVE 2010: THE SECOND INTERNATIONAL CONFERENCE ON ADVANCED COGNITIVE TECHNOLOGIES AND APPLICATIONS

Abstract
GUI interfaces require considerable visual attention for their operation excluding the access to important information coded only in the layout. In an Era of mobile devices, we must enhance the auditory designs, to facilitate the interactive contents access to the blind, people with low vision, and/or in any use context. This essay is part of an experimental approach at the human perception based on the theories of form - Gestalt - and the Computational in order to process and implement the brain acquisition signal, obtaining relations between the visual and sound stimuli. We present a computational approach that underlay the electrical signal acquisition of the brain to stimuli response - "Event-Related Potentials" (P300) - based on a fundamental visual syntax that assumes the Gestalt phenomenology with new statistical interim results to the modeling multi-perceptive of information processing (visual and auditory), with the ultimate goal of framing a lexicon and/or basic patterns common that can be applied directly to a well-grounded development of GUI - "Graphic User Interfaces" and AUI - "Auditory User Interfaces".

2010

Brain's Electrical Response To Visual And Auditory Stimuli Relations Between The Two Stimuli Modalities

Authors
Giesteira, B; Travassos, J; Freitas, D; Tavares, D;

Publication
2010 3RD INTERNATIONAL CONFERENCE ON BIOMEDICAL ENGINEERING AND INFORMATICS (BMEI 2010), VOLS 1-7

Abstract
Objective: Ascertain relations between brain responses elicited by stimuli of different modalities (visual and audiological). The stimuli used were based on some of the basic elements and concepts of the visual syntax, regarding to the Gestalt theory, and an audiological grammar based on the clinical protocols. Methods: We used Event-Related Potentials for assessing the brain's electrical response to visual and auditory stimuli. Materials: Biopac Systems Mp 150 - Data acquisition unit "MP150A.CE"; universal interface module "UIM100C"; stimulator module "STM100C", two electroencephalogram amplifier modules "EEG100C"; Ag-AgCL lead electrodes - AcqKnowledge 3.9.0 (software); SuperLab 4.0 (software) and MatlabR2008B. Results: Interim results presented in form of waveforms representing the average and standard deviation of all signals acquired for each type of stimulus. Conclusions: We can visually conclude that different modalities elicit different waveforms and certain stimuli have a more defined response than others.

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